High-temperature heat capacity and thermodynamic properties of Tb2Sn2O7

被引：0
|
作者：
L. T. Denisova
L. A. Irtyugo
Yu. F. Kargin
V. V. Beletskii
V. M. Denisov
机构：
[1] Siberian Federal University,Institute of Nonferrous Metals and Materials Science
[2] Russian Academy of Sciences,Baikov Institute of Metallurgy and Materials Science
来源：
Inorganic Materials | 2017年 / 53卷
关键词：
terbium stannate; high-temperature heat capacity; thermodynamic functions;
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学科分类号：
摘要：
Tb2Sn2O7 has been prepared by solid-state reaction in air at 1473 K over a period of 200 h and its isobaric heat capacity has been studied experimentally in the range 350–1073 K. The Cp(T) data for this compound have no extrema and are well represented by the classic Maier–Kelley equation. The experimental Cp(T) data have been used to evaluate the thermodynamic properties of terbium stannate (pyrochlore structure): enthalpy increment H°(T)–H°(350 K), entropy change S°(T)–S°(350 K), and reduced Gibbs energy Ф°(Т).
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页码：93 / 95
页数：2
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